Analysis

  • max time kernel
    146s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    18-12-2024 16:32

General

  • Target

    fc4c19c4f99d2dae23b8a3c779e0ca44_JaffaCakes118.exe

  • Size

    10.2MB

  • MD5

    fc4c19c4f99d2dae23b8a3c779e0ca44

  • SHA1

    7464b6fee5fcac8fe8fafbf979d84e2c2b0e8b0b

  • SHA256

    cae6e52eea1ab162fae910da0f3e05511e3dbdcef880c7b086bc957d02f4a03a

  • SHA512

    e0a5a3c551aa6fb4e7cde98610a5b1c8a2c9fd817d66ffe4f935074c245d9c09f5d49f6a00ec63f2c5ec6253978621dc033ad21619bed81e61eacd7dd5eaf1e4

  • SSDEEP

    196608:Ydrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr:wrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrn

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Tofsee family
  • Windows security bypass 2 TTPs 1 IoCs
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc4c19c4f99d2dae23b8a3c779e0ca44_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fc4c19c4f99d2dae23b8a3c779e0ca44_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2312
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\axuprhyy\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2808
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ahtgpcdx.exe" C:\Windows\SysWOW64\axuprhyy\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2708
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create axuprhyy binPath= "C:\Windows\SysWOW64\axuprhyy\ahtgpcdx.exe /d\"C:\Users\Admin\AppData\Local\Temp\fc4c19c4f99d2dae23b8a3c779e0ca44_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2832
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description axuprhyy "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2604
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start axuprhyy
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2740
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:2572
  • C:\Windows\SysWOW64\axuprhyy\ahtgpcdx.exe
    C:\Windows\SysWOW64\axuprhyy\ahtgpcdx.exe /d"C:\Users\Admin\AppData\Local\Temp\fc4c19c4f99d2dae23b8a3c779e0ca44_JaffaCakes118.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:3020

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\ahtgpcdx.exe

    Filesize

    10.0MB

    MD5

    3cf9fc740908d3503201c2ab3bf262b5

    SHA1

    9392de53ae44862cf3095afcaf8dca567bb22833

    SHA256

    071506d1e261c2b41abdb6ff0a1728d68fd2e722150593aebfcf978aa1d234c5

    SHA512

    52e83197e0b8483b5a65f76d9c66a0b7029b4a400355e2e0918479e09cf2d9c48e134cf30e95a5a580cabe606f843ae61c32a731aeca47d9064b790a9f1b4f24

  • memory/2044-17-0x0000000000400000-0x0000000000455000-memory.dmp

    Filesize

    340KB

  • memory/2312-1-0x0000000000270000-0x0000000000370000-memory.dmp

    Filesize

    1024KB

  • memory/2312-3-0x0000000000400000-0x0000000000455000-memory.dmp

    Filesize

    340KB

  • memory/2312-2-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2312-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2312-9-0x0000000000400000-0x0000000000455000-memory.dmp

    Filesize

    340KB

  • memory/3020-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/3020-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/3020-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/3020-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3020-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB